Laserfiche WebLink
~1 <br />~~ <br />DRAIN ROCK <br />1.) DURABLE, NON-ACID, NON-TOXIC FORMING ROCK. <br />SLAKE DURABILITY (ASTM D 4644) - Gf~EATER THAN 90% <br />FILTER FABRIC - MIRAFI 140 OR EQUIVALENT. <br />I <br />2.) ON-SITE, VERY HARD, "CHANNEL" I <br />SANDSTONE SHOULD QUALIFY. <br />TYPICAL TRIANGULAR <br />DRAIN SECTION <br />NO SCALE <br />VALLEY FILLS DRAIN REQUIREMENTS <br />) FILL FILL MINIMUM MINIMUM REQUIRED <br />VOLUME TYPE HEIGHT FT WIDTH FT AREA SF <br />< 1 ,000,000 CY SANDST ONE 4 10 40 <br /> SHALE 8 16 128 <br />> 1,000,000 CY SANDSTONE 8 <br />SHALE 16 <br />DRAIN RECOMMENDATIONS <br />FILL <br />LOCATION <br />FILLS 2-1, AND 8-1 <br />FILLS 5, 6, 7 AND 9 <br />FILLS 4 AND 8 <br />a <br />~l <br />Lorencito SuRece Mlne <br />pM,s ~ <br />Job No. 32,611 <br />EQUIVALENT TRIANGULAR TRIANGULAR <br />DRAIN DIMENSIONS (HxW~ DRAIN AREA (SF) <br />6.5 x 13 42 <br />8 x 16 128 <br />16 128 8 x 16 <br />16 256 16 x 32 <br />DRAIN DIMENSIONS (HxW} <br />3 x 6 <br />6 x 12 <br />16 x 32 <br />6 x 12 <br />128 <br />256 <br />DRAIN AREA (SF) <br />9 <br />36 <br />256 <br />36 <br />RECOMMENDED <br />ROCK GRADATION <br />90% OR MORE <br />GREATER THAN <br />12 INCHES, <br />MAXIMUM SIZE <br />EQUAL TO <br />1/4 OF WIDTH <br />RECOMMENDED <br />ROCK GRADATION <br />1" TO 6" ROCK <br />1' TO 2' ROCK <br />(/ ~ <br />~~If3/ ~'l3~ f~lGu~~~, <br />~~~ s-r~/~,~ R,~a~TZ r, <br />1' TO 4' i ROCK (PER VALLEY FILL REGULATION) <br />1' TO 2' ROCK (RECOMMENDED, VARIANCE REQUIRED) <br />Drain <br />Requirements <br />Flg. 6 <br />W +-I <br />